Pittsburgh Steelers quarterback Mason Rudolph warms up before an NFL football game against the San Francisco 49ers in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

Pittsburgh Steelers quarterback Mason Rudolph (2) warms up before an NFL football game against the San Francisco 49ers in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

Pittsburgh Steelers wide receiver JuJu Smith-Schuster (19) runs against the San Francisco 49ers during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

Pittsburgh Steelers quarterback Mason Rudolph (2) passes against the San Francisco 49ers during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

San Francisco 49ers quarterback Jimmy Garoppolo passes against the Pittsburgh Steelers during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

San Francisco 49ers quarterback Jimmy Garoppolo (10) passes against the Pittsburgh Steelers during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

Pittsburgh Steelers defensive end Stephon Tuitt, left, sacks San Francisco 49ers quarterback Jimmy Garoppolo during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

Pittsburgh Steelers quarterback Mason Rudolph (2) is tackled by San Francisco 49ers defensive tackle DeForest Buckner (99) during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

San Francisco 49ers wide receiver Deebo Samuel (19) runs in front of Pittsburgh Steelers cornerback Mike Hilton during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

Pittsburgh Steelers defensive end Stephon Tuitt, top, sacks San Francisco 49ers quarterback Jimmy Garoppolo during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

Pittsburgh Steelers running back James Conner (30) runs against San Francisco 49ers strong safety Jaquiski Tartt (29) during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

Pittsburgh Steelers tight end Vance McDonald, right, prepares to block San Francisco 49ers defensive end Nick Bosa (97) during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

San Francisco 49ers' Richie James Jr. runs against the Pittsburgh Steelers during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

Pittsburgh Steelers free safety Minkah Fitzpatrick (39) returns a turnover against San Francisco 49ers tight end George Kittle (85) during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

Pittsburgh Steelers linebacker Devin Bush, top, falls over San Francisco 49ers tight end George Kittle after recovering a fumble by 49ers running back Raheem Mostert during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

San Francisco 49ers running back Raheem Mostert, bottom left, fumbles the ball in front of Pittsburgh Steelers free safety Minkah Fitzpatrick (39) during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

San Francisco 49ers running back Matt Breida (22) is pushed out of bounds by Pittsburgh Steelers cornerback Joe Haden during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

San Francisco 49ers fullback Kyle Juszczyk, center, runs between Pittsburgh Steelers strong safety Terrell Edmunds, left, and free safety Minkah Fitzpatrick during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

Ryan Shazier, center left, watches from the sideline during the first half of an NFL football game between the San Francisco 49ers and the Pittsburgh Steelers in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

Pittsburgh Steelers quarterback Mason Rudolph (2) passes against the San Francisco 49ers during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

San Francisco 49ers fullback Kyle Juszczyk, left, breaks a tackle attempt by Pittsburgh Steelers free safety Minkah Fitzpatrick during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

San Francisco 49ers running back Jeff Wilson Jr. (30) celebrates with teammates after scoring against the Pittsburgh Steelers during the second half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

Former San Francisco 49ers wide receiver Terrell Owens is honored during a ceremony as he is inducted into the team's Hall of Fame during halftime of an NFL football game between the 49ers and the Pittsburgh Steelers in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

Pittsburgh Steelers quarterback Mason Rudolph, center left, celebrates with teammates after throwing a touchdown pass to wide receiver JuJu Smith-Schuster during the second half of an NFL football game against the San Francisco 49ers in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

San Francisco 49ers wide receiver Deebo Samuel (19) cannot catch a pass in front of Pittsburgh Steelers cornerback Joe Haden during the second half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

San Francisco 49ers head coach Kyle Shanahan watches during the second half of an NFL football game between the 49ers and the Pittsburgh Steelers in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

Pittsburgh Steelers wide receiver JuJu Smith-Schuster (19) runs past San Francisco 49ers cornerback Ahkello Witherspoon (23) to score a touchdown during the second half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

San Francisco 49ers running back Jeff Wilson Jr. reacts after scoring against the Pittsburgh Steelers during the second half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

Pittsburgh Steelers wide receiver Diontae Johnson, center, catches a touchdown in front of San Francisco 49ers defensive back Jason Verrett (27) during the second half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

San Francisco 49ers running back Matt Breida (22) runs against the Pittsburgh Steelers during the second half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

Pittsburgh Steelers wide receiver Diontae Johnson scores against the San Francisco 49ers during the second half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

Pittsburgh Steelers quarterback Mason Rudolph (2) passes as he is pressured by San Francisco 49ers defensive end Arik Armstead during the second half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

San Francisco 49ers wide receiver Dante Pettis (18) celebrates after scoring against the Pittsburgh Steelers during the second half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

Pittsburgh Steelers wide receiver Diontae Johnson catches a touchdown pass against the San Francisco 49ers during the second half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

Pittsburgh Steelers head coach Mike Tomlin watches during the second half of an NFL football game between the San Francisco 49ers and the Steelers in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

San Francisco 49ers defensive tackle DeForest Buckner (99) celebrates after recovering a fumble against the Pittsburgh Steelers during the second half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)

San Francisco 49ers defensive tackle DeForest Buckner (99) holds up the ball after the 49ers recovered a fumble against the Pittsburgh Steelers during the second half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

Pittsburgh Steelers head coach Mike Tomlin, left, greets San Francisco 49ers head coach Kyle Shanahan after an NFL football game between the 49ers and the Steelers in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

San Francisco 49ers wide receiver Dante Pettis (18) scores against the Pittsburgh Steelers during the second half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

Pittsburgh Steelers cornerback Steven Nelson (22) sits on the bench next to cornerback Joe Haden (23) during the second half of an NFL football game against the San Francisco 49ers in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Ben Margot)

San Francisco 49ers tight end George Kittle (85) celebrates with fans after the 49ers defeated the Pittsburgh Steelers in an NFL football game in Santa Clara, Calif., Sunday, Sept. 22, 2019. (AP Photo/Tony Avelar)